Avoid interfering with Intellij Light Edit mode (#2027)

Resolves #1816

idea-plugin/src/main/kotlin/org/jetbrains/compose/desktop/ide/preview/PreviewFloatingToolbarProvider.kt

@@ -45,9 +45,11 @@ class PreviewFloatingToolbarProvider : AbstractFloatingToolbarProvider(PREVIEW_E
         editor: Editor,
         parentDisposable: Disposable
     ) {
-        val project = editor.project ?: return
+        val project = editor.project
-        val listener = PreviewEditorToolbarVisibilityUpdater(component, project, editor)
+        if (project != null && isPreviewCompatible(project)) {
-        editor.caretModel.addCaretListener(listener, parentDisposable)
+            val listener = PreviewEditorToolbarVisibilityUpdater(component, project, editor)
+            editor.caretModel.addCaretListener(listener, parentDisposable)
+        }
     }
 }
 

idea-plugin/src/main/kotlin/org/jetbrains/compose/desktop/ide/preview/PreviewToolWindow.kt

@@ -14,10 +14,8 @@ import org.jetbrains.compose.desktop.ide.preview.ui.PreviewPanel
 import java.awt.BorderLayout
 
 class PreviewToolWindow : ToolWindowFactory, DumbAware {
-    override fun isApplicable(project: Project): Boolean {
+    override fun isApplicable(project: Project): Boolean =
-        // todo: filter only Compose projects
+        isPreviewCompatible(project)
-        return true
-    }
 
     override fun init(toolWindow: ToolWindow) {
         toolWindow.setIcon(PreviewIcons.COMPOSE)

idea-plugin/src/main/kotlin/org/jetbrains/compose/desktop/ide/preview/ijCompatibilityUtils.kt

@@ -5,10 +5,16 @@
 
 package org.jetbrains.compose.desktop.ide.preview
 
+import com.intellij.ide.lightEdit.LightEdit
 import com.intellij.openapi.externalSystem.model.Key
 import com.intellij.openapi.externalSystem.model.project.AbstractNamedData
+import com.intellij.openapi.project.Project
 import java.lang.reflect.Modifier
 
+// todo: filter only Compose projects
+internal fun isPreviewCompatible(project: Project): Boolean =
+    !LightEdit.owns(project)
+
 internal val kotlinTargetDataKey: Key<out AbstractNamedData> = run {
     val kotlinTargetDataClass = try {
         Class.forName("org.jetbrains.kotlin.idea.gradle.configuration.KotlinTargetData")